Improve settings hierarchy conciseness

core/models.py

@@ -2925,6 +2925,17 @@ class UserXmppSecuritySettings(models.Model):
     updated_at = models.DateTimeField(auto_now=True)
 
 
+class UserAccessibilitySettings(models.Model):
+    user = models.OneToOneField(
+        User,
+        on_delete=models.CASCADE,
+        related_name="accessibility_settings",
+    )
+    disable_animations = models.BooleanField(default=False)
+    created_at = models.DateTimeField(auto_now_add=True)
+    updated_at = models.DateTimeField(auto_now=True)
+
+
 class TaskCompletionPattern(models.Model):
     id = models.UUIDField(primary_key=True, default=uuid.uuid4, editable=False)
     user = models.ForeignKey(User, on_delete=models.CASCADE, related_name="task_completion_patterns")